Question
Download Solution PDFWhat will be the primary current of a 20 kVA, 6600/220 V, 50 Hz step-down ideal transformer?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept
The KVA rating remains the same on the primary and secondary sides of the transformer.
Primary KVA = Secondary KVA
\(\sqrt{3}V_LI_L=\sqrt{3}V_HI_H\)
Calculation
Given, S = 20 kVA
VL = 6600 V
\(20\times 10^3=6600\times I_L\)
IL = 3.03 A
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